Contrast Limited Adaptive Histogram Equalization (CLAHE)

Contrast Limited Adaptive Histogram Equalization (CLAHE) is an image processing technique that improves the clarity and detail of photos, especially in areas that are too dark or too bright. Unlike regular methods, CLAHE works locally, adjusting small sections of the image to enhance features without over-amplifying noise. It limits the contrast enhancement in each region to prevent unnatural appearances. This results in images with more balanced, detailed, and natural-looking contrast, making features easier to see and interpret—useful in medical imaging, photography, and other fields requiring detailed visual analysis.